41 lines
663 B
NASM
41 lines
663 B
NASM
; 实验三-4：成绩分类程序
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; 功能：根据分数分类为A/B/C/D/E
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; 90分以上为A，80-89为B，70-79为C，60-69为D，60分以下为E
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DATA SEGMENT
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SCORE DB 85
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GRADE DB ?
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DATA ENDS
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CODE SEGMENT
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ASSUME CS:CODE, DS:DATA
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START:
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MOV AX, DATA
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MOV DS, AX
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MOV AL, SCORE
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CMP AL, 90
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JAE A_GRADE
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CMP AL, 80
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JAE B_GRADE
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CMP AL, 70
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JAE C_GRADE
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CMP AL, 60
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JAE D_GRADE
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MOV GRADE, 'E'
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JMP EXIT
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A_GRADE:
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MOV GRADE, 'A'
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JMP EXIT
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B_GRADE:
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MOV GRADE, 'B'
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JMP EXIT
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C_GRADE:
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MOV GRADE, 'C'
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JMP EXIT
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D_GRADE:
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MOV GRADE, 'D'
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EXIT:
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MOV AH, 4CH
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INT 21H
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CODE ENDS
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END START |